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Home My WebLink About2560410 - F.I. Received Doc. - FI Response letterStingray Environmental Engineering Ltd. 2 Forgehill close, Stamullen, K32VK76 Co. Meath, Ireland T: +35316949174 M: +353857215590 Email: info@stingrayenvironmental.ie www.stingrayenvironmental.ie Stingray Environmental Engineering Ltd. Registered Office: 2 Forgehill Close, Stamullen, Co. Meath, K32 VK76, Registered in Ireland. Company Reg. No.639965, VAT Number:3587878GH, A private company limited by shares having a share capital. Directors: Waldemar Debowski Date: 6th June 2026 c/o Cathal O’Leary Leah Unicorn Ltd. Wexford Enterprise Centre Strandfield Business Park Kerlogue Wexford Y35R28A RE: 25/60410 retention of internal alterations to previous approved plans under 20/155 and all associated site development work at Treacy’s Hotel, Losset, Kingscourt Road, Carrickmacross, Co. Monaghan. To Whom it may concern, Further to the request for the additional information, issued by Monaghan County Council on the 08th of December 2025, Stingray Environmental Engineering prepared the site specific response to detail: • Foul Sewer for an existing development. Waste Water: Additional information requested: Response: We would like to certify installation of the 290PE wastewater treatment system and raised 725m 2 tertiary sand polishing filter successfully completed by civil and wastewater specialist contractor Mitchell Environmental Ltd., on the 24th of June 2024. a). Please note that a polishing filter design and loading calculations have been based on findings of site suitability Assessment carried out by Stingray Environmental Engineering Ltd. on the 11 th of May 2026 and using guidance provided by: • EPA 2021 Code of Practice for wastewater treatment and disposal systems ( polishing filter design) RECEIVED: 16/06/2026 Stingray Environmental Engineering Ltd. 2 Forgehill close, Stamullen, K32VK76 Co. Meath, Ireland T: +35316949174 M: +353857215590 Email: info@stingrayenvironmental.ie www.stingrayenvironmental.ie Stingray Environmental Engineering Ltd. Registered Office: 2 Forgehill Close, Stamullen, Co. Meath, K32 VK76, Registered in Ireland. Company Reg. No.639965, VAT Number:3587878GH, A private company limited by shares having a share capital. Directors: Waldemar Debowski b). Please note that a WWTS design was prepared by Stingray Environmental Engineering Ltd. on the 22nd of April 2020 and using guidance provided by: • EPA 1999 Wastewater Treatment Manual Treatment Systems for Small Communities, Business, Leisure Centres and Hotels (WWTS design) c). The installed system is operating in accordance to design standards and is being regularly maintained, monitored , desludged by system operator Mitchell Environmental Ltd. Copies of service, monitoring and de-sludging records are available upon request. d). System design was based on the maximum population of 290PE and 43.5m3 effluent discharge per day , however the maximum daily discharge are currently not exceeding 35m3.day as confirmed by Mitchell Environmental Ltd. e) . For design summary please refer to section below and number of reports enclosed Figure 1.Maximum estimated loadings – peak occupancy RECEIVED: 16/06/2026 Stingray Environmental Engineering Ltd. 2 Forgehill close, Stamullen, K32VK76 Co. Meath, Ireland T: +35316949174 M: +353857215590 Email: info@stingrayenvironmental.ie www.stingrayenvironmental.ie Stingray Environmental Engineering Ltd. Registered Office: 2 Forgehill Close, Stamullen, Co. Meath, K32 VK76, Registered in Ireland. Company Reg. No.639965, VAT Number:3587878GH, A private company limited by shares having a share capital. Directors: Waldemar Debowski Figure 2. WWTS layout plan RECEIVED: 16/06/2026 Stingray Environmental Engineering Ltd. 2 Forgehill close, Stamullen, K32VK76 Co. Meath, Ireland T: +35316949174 M: +353857215590 Email: info@stingrayenvironmental.ie www.stingrayenvironmental.ie Stingray Environmental Engineering Ltd. Registered Office: 2 Forgehill Close, Stamullen, Co. Meath, K32 VK76, Registered in Ireland. Company Reg. No.639965, VAT Number:3587878GH, A private company limited by shares having a share capital. Directors: Waldemar Debowski Figure 3. WWTS details RECEIVED: 16/06/2026 Stingray Environmental Engineering Ltd. 2 Forgehill close, Stamullen, K32VK76 Co. Meath, Ireland T: +35316949174 M: +353857215590 Email: info@stingrayenvironmental.ie www.stingrayenvironmental.ie Stingray Environmental Engineering Ltd. Registered Office: 2 Forgehill Close, Stamullen, Co. Meath, K32 VK76, Registered in Ireland. Company Reg. No.639965, VAT Number:3587878GH, A private company limited by shares having a share capital. Directors: Waldemar Debowski Figure 3. Polishing Filter details RECEIVED: 16/06/2026 Stingray Environmental Engineering Ltd. 2 Forgehill close, Stamullen, K32VK76 Co. Meath, Ireland T: +35316949174 M: +353857215590 Email: info@stingrayenvironmental.ie www.stingrayenvironmental.ie Stingray Environmental Engineering Ltd. Registered Office: 2 Forgehill Close, Stamullen, Co. Meath, K32 VK76, Registered in Ireland. Company Reg. No.639965, VAT Number:3587878GH, A private company limited by shares having a share capital. Directors: Waldemar Debowski Yours Sincerely, Waldemar Debowski Waldemar Debowski Director/Environmental Enginee r Enclosed: • Appendix A.EPA SCF Treacys Hotel Losset Carrickmacross Co. Monaghan • Appendix B.EPA 2020-04-22 EPA SCR Treacys Hotel Losset Carrickmacross Co. Monaghan • Appendix C.EPA 2020-04-22 Tracey Hotel Losset Carrickmacross Co. Monaghan WWTS 290PE Design • Appendix D.EPA Dwg.410-C01E Treacys Hotel Losset Carrickmacross Co. Monaghan WWTS Layout Plan • Appendix E.EPA Dwg.410-C02D Treacys Hotel Losset Carrickmacross Co. Monaghan WWTS Details • Appendix F.EPA Dwg.410-C03B Treacys Hotel Losset Carrickmacross Co. Monaghan Polishing Filter Details • Appendix G.EPA 2026-06-06 Treacys Hotel Losset Kingscourt Road Carrickmacross Co. Monaghan wastewater loading form RECEIVED: 16/06/2026 APPENDIX B: SITE CHARACTERISATION FORM 1.0 GENERAL DETAILS (From planning application) Preﬁx: First Name: Surname: Address: Site Location and Townland: Telephone No: Fax No: E-Mail: Maximum no. of Residents: No. of Double Bedrooms: No. of Single Bedrooms: Proposed Water Supply: Mains Private Well/Borehole Group Well/Borehole 2.0 GENERAL DETAILS (From planning application) Soil Type, (Specify Type): Aquifer Category: Regionally Important Locally Important Poor Vulnerability: Extreme High Moderate Low High to Low Unknown Bedrock Type: Name of Public/Group Scheme Water Supply within 1 km: Groundwater Protection Scheme (Y/N): Source Protection Area: SI SO Groundwater Protection Response: Presence of Signiﬁcant Sites (Archaeological, Natural & Historical): Past experience in the area: Comments: (Integrate the information above in order to comment on: the potential suitability of the site, potential targets at risk, and/or any potential site restrictions). Note: Only information available at the desk study stage should be used in this section. File Reference:SEE-D032 Leah Unicorn Ltd.Treacys Hotel Carrickmacross Monaghan Lossets, Carrickmacross, Co.Monaghan, A81CY23 Lossets, Carrickmacross, Co.Monaghan, A81CY23 N/A N/A Cathal O Leary OLS <cathal@olsarchitects.ie> agent/architect 290 ✔ Amin PD - mineral poorly drained Lm ✔ CB Cabra formation, NU namurian undifferentiated, sandstone and shale None within 1km Yes R1 Lough Fea 500m North East of area tested. Small package mechanical wwts and septic tanks with soil polishing filters/percoaltion areas serving The main target at risk is the ground water and the surface water. Based on the available hydro geological data, an on-site treatment system should be acceptable, subject to normal good practice. There doesn't appear to be site restriction existing or potential in place. Site is acceptable subject to normal good practice [i.e. system selection, construction, operation and maintenance in accordance with EPA (2009)]. At present the existing hotel "The M Hotel" is served by secondary package WWTS BAF and tertiary peat polishing filter. Existing mechanical WWTS 200PE ( 30m3/day of hydraulic flow) has been recently upgraded and is in good working order. The peat filter and gravel distribution filter requires attention as recently the effluent outbreak to surface has been reported by MCC. New tertiary sand polishing filter and gravel distribution bed to be proposed in new location subject to test results and finding of suitability report. For full Breakdown Refer to Site Characterisation Report Section 5/pg11 APPENDIX A . RECEIVED: 16/06/2026 3.0 ON-SITE ASSESSMENT 3.1 Visual Assessment Landscape Position: Slope: Steep (>1:5) Shallow (1:5-1:20) Relatively Flat (<1:20) Surface Features within a minimum of 250m (Distance To Features Should Be Noted In Metres) Houses: Existing Land Use: Vegetation Indicators: Groundwater Flow Direction: Ground Condition: Site Boundaries: Roads: Outcrops (Bedrock And/Or Subsoil): Surface Water Ponding: Lakes: Beaches/Shellﬁsh: Areas/Wetlands: Karst Features: Watercourse/Stream*: Drainage Ditches*: Springs / Wells*: Comments: (Integrate the information above in order to comment on: the potential suitability of the site, potential targets at risk, the suitability of the site to treat the wastewater and the location of the proposed system within the site). *Note and record water level commercial site cut into the slope of the hill , terrain vary from steep along N boundary to shallow heading for R179 ✔✔✔ existing commercial building, hotel and restaurant, no neighbouring developments within 100m radius of area tested, commercial, occupied , in use high grass in area tested with weeds,shrubs, ornamental trees present, no indication of poor drainage NE towards SE following contour of the site dry and firm at the time of the assessment as per attached site map R179 Road beyond W boundary, refer to attached OSI map none evident at the time of site assessment none none within 1000m of site boundaries none within 1000m of site boundaries none within 350m of site boundaries none evident at the time of site assessment none within 350m of site boundaries none within site boundaries none recorded within 300m of area tested The main target at risk is the ground water. Ensuring that recommended setback distances are achieved site deems to be suitable for upgrade of existing wwts and on-site effluent disposal system. RECEIVED: 16/06/2026 3.2 Trial Hole (should be a minimum of 2.1m deep (3m for regionally important aquifers)) Depth of trial hole (m): Depth from ground surface Depth from ground surface to bedrock (m) (if present): to water table (m) (if present): Depth of water ingress: Rock type (if present): Date and time of excavation: Date and time of examination: Depth Soil/Subsoil Plasticity and Soil Density/ Colour**** Preferential of P/T Texture & dilatancy*** Structure Compactness ﬂowpaths Test* Classiﬁcation** 0.1 m 0.2 m 0.3 m 0.4 m 0.5 m 0.6 m 0.7 m 0.8 m 0.9 m 1.0 m 1.1 m 1.2 m 1.3 m 1.4 m 1.5 m 1.6 m 1.7 m 1.8 m 1.9 m 2.0 m 2.1 m 2.2 m 2.3 m 2.4 m 2.5 m 2.6 m 2.7 m 2.8 m 2.9 m 3.0 m Likely T value: Note: *Depth of percolation test holes should be indicated on log above. (Enter P or T at depts as appropriate). ** See Appendix E for BS 5930 classiﬁcation. *** 3 samples to be tested for each horizon and results should be entered above for each horizon. **** All signs of mottling should be recorded. To avoid any accidental damage, a trial hole assessment or percolation tests should not be undertaken in areas, which are at or adjacent to signiﬁcant sites (e.g. NHAs, SACs, SPAs, and/or Archaeological etc.), without prior advice from National Parks and Wildlife Service or the Heritage Service. 1.50 1.4 sandstone and shale 10/04/2020 12:00 10/04/2020 12:30 T1,2,3 Rock Base SILT/CLAY with sand,cobbles and gravels throughout Rock ================ = Bedrock recorded @ 1.40m b/g/l ---------------------------- - Base of the Trial Pit Threads 4,3,4 Ribbon 70,80,80 dillatancy uncertain ============== = Loose Single grains, Blocky =========== = Firm/Stiff ================== = Medium Brown =========== None =================== 40 none re corded none re corded RECEIVED: 16/06/2026 3.3(a) Percolation (“T”) Test for Deep Subsoils and/or Water Table Step 1: Test Hole Preparation Percolation Test Hole 1 2 3 Depth from ground surface to top of hole (mm) (A) Depth from ground surface to base of hole (mm) (B) Depth of hole (mm) [B - A] Dimensions of hole [length x breadth (mm)] Step 2: Pre-Soaking Test Holes Date and Time pre-soaking started Each hole should be pre-soaked twice before the test is carried out. Each hole should be empty before reﬁlling. Step 3: Measuring T100 Percolation Test Hole No. 1 2 3 Date of test Time ﬁlled to 400 mm Time water level at 300 mm Time to drop 100 mm (T100 ) Average T100 If T100 > 300 minutes then T-value >90 – site unsuitable for discharge to ground If T100 210 minutes then go to Step 4; If T100 > 210 minutes then go to Step 5; x x x 3.2 Trial Hole (contd.) Evaluation: Trial pit examination would indicate relatively good soakage with moderate percolation values. 100 100 100 500 500 500 400 400 400 300 300 300 300 300 300 10/04/2020 08:00 10/04/2020 08:00 10/04/2020 08:00 11/04/2020 11/04/2020 11/04/2020 08:00 08:00 08:00 10:00 09:30 09:45 120 90 105 105RECEIVED: 16/06/2026 Step 5: Modiﬁed Method (where T100 > 210 minutes) Percolation Test Hole No. 1 2 3 Fall of water Time Time Kfs T – Time Time Kfs T – Time Time Kfs T – in hole (mm) Factor of fall = Tf Value Factor of fall = Tf Value Factor of fall = Tf Value = Tf (mins) / Tm = 4.45 = Tf (mins) / Tm = 4.45 = Tf (mins) / Tm = 4.45 = Tm / Kfs = Tm / Kfs = Tm / Kfs 300 - 250 8.1 8.1 8.1 250 - 200 9.7 9.7 9.7 200 - 150 11.9 11.9 11.9 150 - 100 14.1 14.1 14.1 Average T- Value T- Value Hole 1= (t1) T- Value Hole 1= (t2) T- Value Hole 1= (t3) Result of Test: T = (min/25 mm) Comments: Step 4: Standard Method (where T100 210 minutes) Percolation Test Hole 1 2 3 Fill no. Start Finish t (min) Start Finish t (min) Start Finish t (min) Time Time Time Time Time Time (at 300 (at 200 (at 300 (at 200 (at 300 (at 200 mm) mm) mm) mm) mm) mm) 1 2 3 Average t Value Average t/4 = Average t/4 = Average t/4 = [Hole No.1] (t1) [Hole No.2] (t2) [Hole No.3] (t3) Result of Test: T = (min/25 mm) Comments: 10:00 12:00 120 09:30 11:30 120 09:45 11:30 105 12:00 14:15 135 11:30 13:40 130 11:30 13:30 120 14:15 16:35 140 13:40 16:00 140 13:30 15:45 135 131.66666666666666 130 120 32.916666666666664 32.5 30 31.805555555555554 Analysis of the T-test results indicates moderate percolation values with relatively good soakage in the subsoil 0 0 0 0 RECEIVED: 16/06/2026 3.3(b) Percolation (“P”) Test for Shallow Soil / Subsoils and/or Water Table Step 1: Test Hole Preparation Percolation Test Hole 1 2 3 Depth from ground surface to top of hole (mm) Depth from ground surface to base of hole (mm) Depth of hole (mm) Dimensions of hole [length x breadth (mm)] Step 2: Pre-Soaking Test Holes Date and Time pre-soaking started Each hole should be pre-soaked twice before the test is carried out. Each hole should be empty before reﬁlling. Step 3: Measuring P100 Percolation Test Hole No. 1 2 3 Date of test Time ﬁlled to 400 mm Time water level at 300 mm Time to drop 100 mm (P100 ) Average P100 If P100 > 300 minutes then P-value >90 – site unsuitable for discharge to ground If P100 210 minutes then go to Step 4; If P100 > 210 minutes then go to Step 5; x x x 0 0 0 0 0 0 0 0 0 0RECEIVED: 16/06/2026 Step 4: Standard Method (where P100 210 minutes) Percolation Test Hole 1 2 3 Fill no. Start Finish p (min) Start Finish p (min) Start Finish p (min) Time Time Time Time Time Time (at 300 (at 200 (at 300 (at 200 (at 300 (at 200 mm) mm) mm) mm) mm) mm) 1 2 3 Average p Value Average p/4 = Average p/4 = Average p/4 = [Hole No.1] (p1 ) [Hole No.2] (p2 ) [Hole No.3] (p3 ) Result of Test: P = (min/25 mm) Comments: Step 5: Modiﬁed Method (where P100 > 210 minutes) Percolation Test Hole No. 1 2 3 Fall of water Time Time Kfs P – Time Time Kfs P – Time Time Kfs P – in hole (mm) Factor of fall = Tf Value Factor of fall = Tf Value Factor of fall = Tf Value = Tf (mins) / Tm = 4.45 = Tf (mins) / Tm = 4.45 = Tf (mins) / Tm = 4.45 = Tm / Kfs = Tm / Kfs = Tm / Kfs 300 - 250 8.1 8.1 8.1 250 - 200 9.7 9.7 9.7 200 - 150 11.9 11.9 11.9 150 - 100 14.1 14.1 14.1 Average P- Value P- Value Hole 1= (p1 ) P- Value Hole 1= (p2 ) P- Value Hole 1= (p3 ) Result of Test: P = (min/25 mm) Comments: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 No P-test performed as polishing filter had to be engineered and cut through the slope of the hill with originally recreational visitors hotel garden located in this area. 0 0 0 0 RECEIVED: 16/06/2026 3.4 The following associated Maps, Drawings and Photographs should be appended to this site characterisation form. 1 The calculated percolation area or polishing ﬁlter area should be set out accurately on the site layout drawing in accordance with the code of practice’s requirements. 1. Discovery Series 1:50,000 Map indicating overall drainage, groundwater ﬂow direction and housing density in the area. 2. Supporting maps for vulnerability, aquifer classiﬁcation, soil, bedrock. 3. North point should always be included. 4. (a) Sketch of site showing measurements to Trial Hole location and (b) Percolation Test Hole locations, (c) wells and (d) direction of groundwater ﬂow (if known), (e) proposed house (incl. distances from boundaries) (f) adjacent houses, (g) watercourses, (h) signiﬁcant sites (i) and other relevant features. 5. Cross sectional drawing of the site and the proposed layout1 should be submitted. 6. Photographs of the trial hole, test holes and site (date and time referenced).RECEIVED: 16/06/2026 Integrate the information from the desk study and on-site assessment (i.e. visual assessment, trial hole and percolation tests) above and conclude the type of system(s) that is (are) appropriate. This information is also used to choose the optimum ﬁnal disposal route of the treated wastewater. Not Suitable for Development Suitable for 1 Discharge Route 1. Septic tank system (septic tank and percolation area) 2. Secondary Treatment System a. septic tank and ﬁlter system constructed on-site and polishing ﬁlter; or b. packaged wastewater treatment system and polishing ﬁlter 4.0 CONCLUSION of SITE CHARACTERISATION 5.0 RECOMMENDATION Propose to install: and discharge to: Trench Invert level (m): Site Speciﬁc Conditions (e.g. special works, site improvement works testing etc. 1 note: more than one option may be suitable for a site and this should be recorded 2 A discharge of sewage efﬂuent to “waters” (deﬁnition includes any or any part of any river, stream, lake, canal, reservoir, aquifer, pond, watercourse or other inland waters, whether natural or artiﬁcial) will require a licence under the Water Pollution Acts 1977-90. Refer to Section 2.6.2. No No Yes Discharge to Ground Water Packaged wastewater treatment system and polishing ﬁlter Ground Water Proposed development ( additional 49 bedrooms with proposed total capacity of 118 occupants ) to be served by large commercial on-site secondary waste water treatment system minimum 290PE and tertiary sand polishing filter with under-laying distribution gravel for effluent disposal. In order to allow for peak-off peak flow variations we would propose to install/upgrade: 1.The existing 200PE system to 290PE secondary treatment system designed and certified in accordance to 1999 EPA Wastewater Manual for small communities,business,leisure centres and hotels. 2.Raised Sand polishing filter 725msq and underlay distribution gravel 1090msq for tertiary treatment and effluent disposal to groundwater designed and certified in accordance to 2009 EPA Code Of Practice 3.WWTS equipped with necessary fail-safe future i.e: pumped discharge,audio/visual alarm system. Fit for purpose with installation supervised and certified by suitably qualified engineer 4. Sand polishing filter supplied and installed by suitably qualified contractor. 5. Overall project to be supervised and certified by suitably qualified engineer. 6. Old tertiary peat filter to be emptied and decommissioned by licensed contractor For more details refer to Site Characterisation Report All setbacks distance to be maintained as per EPA 2009 COP . Please refer to Site Characterisation Report . Refer to DRW.410-C03 RECEIVED: 16/06/2026 SYSTEM TYPE: Septic Tank System Tank Capacity (m 3) Percolation Area Mounded Percolation Area No. of Trenches No. of Trenches Length of Trenches (m) Length of Trenches (m) Invert Level (m) Invert Level (m) SYSTEM TYPE: Secondary Treatment System Filter Systems Package Treatment Systems Media Type Area (m2)* Depth of Filter Invert Level Type Sand/Soil Soil Capacity PE Constructed Wetland Sizing of Primary Compartment Other m3 SYSTEM TYPE: Tertiary Treatment System Polishing Filter: Surface Area (m2)* or Gravity Fed: Package Treatment System: Capacity (pe) Constructed Wetland: Surface Area (m2)* DISCHARGE ROUTE: Groundwater Hydraulic Loading Rate * (l/m2.d) Surface Water ** Discharge Rate (m3/hr) TREATMENT STANDARDS: Treatment System Performance Standard (mg/l) BOD SS NH4 - N Total N Total P QUALITY ASSURANCE: Installation & Commissioning On-going Maintenance 6.0 TREATMENT SYSTEM DETAILS * Hydraulic loading rate is determined by the percolation rate of subsoil ** Water Pollution Act discharge licence required No. of Trenches Length of Trenches (m) Invert Level (m) 725 mechanical aeration system 290 725 290 ✔60 2.5 20 20 20 The system should be compliant with EPA 1999 Wastewater Manual The installation should be carried out by suitaby qualified contractor with direct supervision of system designer. Civil element of works to be supervised by a suitability qualified person. Preventative service contract to be provided by indemnified and inoculated service technicians. System should come with minimum 2 years warranty and minimum 24 months service package Drw.410-C03 & Drw.410-C01 Drw.410-C03 & Drw.410-C01 Drw.410-C02RECEIVED: 16/06/2026 COMPANY pRElX FIRST nAME 3URNAME !DDRESS 1UALIlCATIONSeXPERIENCE $ATE OF rEPORT pHONE FAX E MAIL iNDEMNITY iNSURANCE nUMBER 3IGNATURE ???????????????????????????????????????? Site aSSeSSor $etai,S Stingray Environmental Engineering Ltd. Mr.Waldemar Debowski 2 Forgehill close, Stamullen, Co.Meath, K32VK76 B.Eng.Mech, P.Grad.Dpls(Env.Eng, Proj.Mgmt),MIEI,MIAH,FETAC/FAS certified 30/10/2019 00353857215590 n/a info@stingrayenvironmental.ie API0002666 W a l d e m a r D ebo w s k i RECEIVED: 16/06/2026 Reference Number: SEE-D032 Site: Treacy’s Hotel, Lossets, Carrickmacross, Co. Monaghan, A81CY32 Name: Leah Unicorn Ltd. April 2020 STINGRAY ENVIRONMENTAL ENGINEERING LTD Authored by: Waldemar Debowski M:00353857215590 T:0035316949174 Email: info@stingrayenvironmental.ie Company Registration No:639965 www.stingrayenvironmental.ie Site Characterization Report EPA 2009 CoP RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/SCREPA2009 STINGRAY ENVIRONMENTAL ENGINEERING LTD. 2 © Stingray Environmental Engineering Ltd. 2019 Disclaimer Although every effort has been made to ensure the accuracy of information contained in this report, complete correctness cannot be guaranteed. The author does not accept any legal liability or responsibility for the accuracy, completeness, or usefulness of any information on product or process disclosed in this report. All or part of this report may be reproduced without further permission, provided the source is ack nowledged. GDPR The new data protection laws, GDPR, effective 25th May 2018. A main principle of our data protection policy: ▪ Personal data will be processed lawfully, fairly and in a transparent manner in relation to the data subject. ▪ Personal data will be collected for specified, explicit and legitimate purposes and not further processed in a manner that is incompatible with those purposes. ▪ Personal data will be adequate, relevant and limited to what is necessary in relation to the purposes for which they are processed. ▪ Personal data will be accurate and where necessary kept up to date. ▪ Personal data will be kept in a from which permits identification of data subjects for no longer than is necessary for the purposes for which the personal date is processed. ▪ Personal data will be processed in a manner that ensures appropriate security of the personal data, including protection against unauthorised or unlawful processing and against accidental loss, destruction or damage, using appropriate technical or organisational measures. We would like to continue to correspond with you by email and text. If you wish to continue, you need take no further action. Otherwise simply forward the email, letter or text message and confirm if you no longer wish to receive correspondence via email or SMS. Stingray Environmental Engineering Ltd. Registered Office: 2 Forgehill Close, Stamullen, Co. Meath, K32 VK76, Registered in Ireland. Company Reg. No.639965, A private company limited by shares having a share capital. Directors: Waldemar Debowski This report is confidential and may be privileged. It may be read, copied and used only by the intended recipient. If you have received it in error, please contact Waldemar Debowski by return e-mail, post or by telephoning either of the above numbers. RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/SCREPA2009 STINGRAY ENVIRONMENTAL ENGINEERING LTD. 3 Introduction 1.Site Specific Information ................................................................................................................................... 4 2.Photographs ..................................................................................................................................................... 5 3.Site characterization ........................................................................................................................................ 8 4.Supporting maps ............................................................................................................................................... 9 5. On-site wastewater treatment system .......................................................................................................... 11 6. Effluent disposal system ............................................................................................................................. 14 7. WWTS & SPF location .................................................................................................................................... 15 8. Summary ........................................................................................................................................................ 15 RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/SCREPA2009 STINGRAY ENVIRONMENTAL ENGINEERING LTD. 4 Introduction This report is based on the findings of a site assessment and soil percolation test as per EPA 2009 CoP, carried out by Stingray Environmental Engineering Ltd. on the 25th of March 2020. As required by Kildare County Council, this report provides recommendations for the on-site wastewater treatment systems and polishing filter/percolation area. 1. Site Specific Information Information supplied by client /architect Total population equivalent :290PE Applicants Name: Treacy’s Hotel Carrickmacross Monaghan Site Address: Treacy’s Hotel, Lossets, Carrickmacross, Co. Monaghan, A81CY23 Site Location: A81CY23 N 6°11'230'57.5"N 6 Water supply: mains Foul Inlet: DN150 UPVC @ max. 700mm BCL RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/SCREPA2009 STINGRAY ENVIRONMENTAL ENGINEERING LTD. 5 2. Photographs site view North-West 15-04-2020 site view South 15-04-2020 RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/SCREPA2009 STINGRAY ENVIRONMENTAL ENGINEERING LTD. 6 site view existing peat filter to be decommissioned 25-03-2020 site view existing peat filter to be decommissioned 25-03-2020 RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/SCREPA2009 STINGRAY ENVIRONMENTAL ENGINEERING LTD. 7 trial pit excavated 25-03-2019 Bedrock @1.4mBCL RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/SCREPA2009 STINGRAY ENVIRONMENTAL ENGINEERING LTD. 8 t-test Location A-Drw.410-C01-T value >180min/25mm 02-03-2020 t-test Location B-Drw. 410-C01-T value >180min/25mm 02-03-2020 RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/SCREPA2009 STINGRAY ENVIRONMENTAL ENGINEERING LTD. 9 t-test Location C-Drw. 410-C01-T value >31min/25mm 25-03-2020 T1 25-03-2020 RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/SCREPA2009 STINGRAY ENVIRONMENTAL ENGINEERING LTD. 10 T2 25-03-2020 T3 25-03-2020 RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/SCREPA2009 STINGRAY ENVIRONMENTAL ENGINEERING LTD. 11 Existing 200PE WWTS Existing 200PE WWTS RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/SCREPA2009 STINGRAY ENVIRONMENTAL ENGINEERING LTD. 12 3. Site characterization The main findings of the site characterisation assessment were as follows: Groundwater was not-encountered on-site at a depth of 1500mm below ground level. Bedrock was encountered on-site at a depth of 1400mm below ground level The average T-Value (Location C-Reference Drw. 410-C01) was 31.81 min/25mm The proposed development is sited over a Locally Important aquifer The vulnerability rating is Low There are no wells on or adjacent to tested site The development is subject to a ground water discharge licence (maximum proposed discharge 43.5m3 /day) 4. Supporting Maps Groundwater Aquifers RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/SCREPA2009 STINGRAY ENVIRONMENTAL ENGINEERING LTD. 13 Source Protection Area Soils RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/SCREPA2009 STINGRAY ENVIRONMENTAL ENGINEERING LTD. 14 Groundwater vulnerability Bedrock RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/SCREPA2009 STINGRAY ENVIRONMENTAL ENGINEERING LTD. 15 5. On-site Waste Water Treatment System Wastewater loading rates Table 1. Wastewater loading rates RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/SCREPA2009 STINGRAY ENVIRONMENTAL ENGINEERING LTD. 16 Proposed System Based on the information contained in Sections 1 & 2, it is recommended that a precast concrete BAF wastewater treatment system with a minimum capacity of 155m3 (including freeboard capacity) is installed to treat the volumes of wastewater proposed. System design is based on the recommendation of technical guidance document EPA 1993 Wastewater Manual, Treatment Systems for Small Communities, Business, Leisure Centres and Hotels in conjunction with BW COP: 1/05 for ammonia calculations. For full design please refer to WWTS Design Proposal Appendix D. RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/SCREPA2009 STINGRAY ENVIRONMENTAL ENGINEERING LTD. 17 The number of factors should be taken into consideration when choosing the on-site wastewater treatment system, with the main objects as follows: Compliance with national and international standards Supervision during construction, installation, and commissioning Supervision during construction of effluent disposal system Frequency and access for servicing Maintenance and operating procedures requirements Life span of the entire system Correct operating procedures Sludge storage, desludging frequency and access for desludging Plant alarm features and fail-safe measures Capital, operation, and maintenance cost System performance Power requirements Access arrangements for installation General information Plant alarm system Package wastewater treatment system should incorporate alarm system, which operate as the warning device. An alarm panel (audio / visual) should be installed in a prominent location within the proposed development. On remote sites, or where required, an automatic dial out alarm system can be provided Surface water Package wastewater treatment systems are not designed to accept surface water run-off from either the development or its surroundings . Surface water should be disposed of to a purpose-built surface water disposal / reuse system. Oils, Fats and Greases As oils, fats and greases are not easily biodegradable they can cause many problems in the collection network. Ideally grease removal is desirable at source, prior to discharge to the collection network. Therefore, we would recommend installation of large precast Grease Separator with minimum nominal size of NS13. For full details of proposed separator please refer to Drw. 325-C01 and Grease Separator Design Report Appendix E. RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/SCREPA2009 STINGRAY ENVIRONMENTAL ENGINEERING LTD. 18 Manufacturer’s Guarantee The wastewater treatment system should come with a minimum of 24 months manufacturer’s guarantee starting from the installation date. In case of defective system installed, supplier should repair or replace, free of charge, any part of the system affecting operation and performance of the unit installed. This guarantee should be given on the basis that the system is installed and operated in accordance with the manufacturer’s instructions. Frequency of Servicing Package system supplier shall maintain the system free of charge for the first 12 months following installation and commissioning, and thereafter should be able to provide the Client with an Annual Service Agreement to service and inspect the system at least once per annum. Installation supervision It should be responsibility of the Project Supervisor (i.e. Engineer, Architect or other competent person) to ensure that the on-site wastewater treatment system is located and installed in accordance with planning conditions and EPA 2009 CoP requirements. Package WWTS performance Package wastewater treatment system should be used only in accordance with the design parameters. To ensure proper operation of the system, it is important to comply with the manufacturer’s instructions and guidance. 6. Effluent disposal system Secondary treatment systems require a polishing filter for the disposal of effluent. The polishing filter is designed to provide a dual function. Polishes the effluent, further reducing the concentrations of various parameters (e.g. phosphorus, microorganisms, etc.) in the treated effluent; and Disposes of the treated effluent into the ground. Design of Disposal System Based on the findings and recommendations of the Site Characterisation Report (Appendix 1) , we propose to construct a raised sand polishing filter in the area adjacent to soil test location. The polishing filter should be constructed after the secondary package wastewater treatment system but before discharging into ground water. It is the responsibility of the Engineer or Architect to ensure that the polishing filter is incorporated into the site drainage scheme. All drainage construction works should be designed and constructed using best practice and should only be attempted under the supervision of an Engineer or other suitably qualified professional. RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/SCREPA2009 STINGRAY ENVIRONMENTAL ENGINEERING LTD. 19 The recommended maximum hydraulic loading rate for the sand polishing filters is 60 l/m2 day as per EPA 2009 CoP. The polishing filter can be calculated as follows: Sand Polishing filter SPF=43500l/p.day /60l/msq; SPF=725msq Distribution Gravel DG=0.125*290*31.81; DG=1153msq The polishing filter should be constructed in accordance with the cross-sectional drawing, as contained in Appendix B. The storm water disposal system for the proposed development should be constructed downgradient of the polishing filter. To allow for access and inspection of the polishing filter, an inspection points should be located at the ends of distribution laterals. Minimum thickness of at least 300 mm of unsaturated subsoil will be present between the highest recorded bedrock (1400mm BGL) and the invert level of the distribution gravel 7. WWTS & SPF location The location and configuration of the test holes, WWTS and effluent disposal area will depend on the site topography, the presence of underground services, planning conditions, and on or other factors, whether existing, planned, or anticipated. The test holes dug have been adjacent to green area set within the separation distances contained in Table 2. Separation distances for placing the WWTS and effluent disposal area should be such, that any excavation work required for the wastewater treatment and disposal system does not undermine adjacent features, such as buildings, roads, or walls. Features WWTS Disposal system Wells (as per GPR) GPR GPR Surface Water Soakaway 5m 5m Watercourse/Stream 10m 10m Open Drain 10m 10m Heritage Features NHA/SAC NHA/SAC Lake/Foreshore 50m 50m Dwelling House 50m 10m Site Boundary 3m 3m Trees/Canopy spread 3m 3m Road 4m 4m Slope break/cuts 4m 4m Table 2. Minimum separation distances-source EPA 2009 Cop RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/SCREPA2009 STINGRAY ENVIRONMENTAL ENGINEERING LTD. 20 8. Summary The 290PE package wastewater treatment system designed under recommendation of technical guidance document EPA 1993 Wastewater Manual, Treatment Systems for Small Communities, Business, Leisure Centres and Hotels in conjunction with BW COP: 1/05 for ammonia calculations. The 725msq of raised sand polishing filter and 1153msq of distribution gravel, should be constructed for effluent disposal. Signed: Waldemar Debowski Date: 22 April 2020 Qualifications: B.Eng. P.Grad.Dips. FETAC Cert MIEI MIAH RECEIVED: 16/06/2026 Reference Number: SEE-D032 Site: Treacy’s Hotel, Lossets, Carrickmacross, Co. Monaghan, A81CY32 Name: Leah Unicorn Ltd. April 2020 STINGRAY ENVIRONMENTAL ENGINEERING LTD Authored by: Waldemar Debowski M:00353857215590 T:0035316949174 Email: info@stingrayenvironmental.ie Company Registration No:639965 www.stingrayenvironmental.ie WWTS Design Engineering Report RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/ENGINEERING REPORT STINGRAY ENVIRONMENTAL ENGINEERING LTD. 2 © Stingray Environmental Engineering Ltd. 2020 Disclaimer Although every effort has been made to ensure the accuracy of information contained in this report, complete correctness cannot be guaranteed. The author does not accept any legal liability or responsibility for the accuracy, completeness, or usefulness of any information on product or process disclosed in this report. All or part of this report may be reproduced without further permission, provided the source is ack nowledged. GDPR The new data protection laws, GDPR, effective 25th May 2018. A main principle of our data protection policy: ▪ Personal data will be processed lawfully, fairly and in a transparent manner in relation to the data subject. ▪ Personal data will be collected for specified, explicit and legitimate purposes and not further processed in a manner that is incompatible with those purposes. ▪ Personal data will be adequate, relevant and limited to what is necessary in relation to the purposes for which they are processed. ▪ Personal data will be accurate and where necessary kept up to date. ▪ Personal data will be kept in a from which permits identification of data subjects for no longer than is necessary for the purposes for which the personal date is processed. ▪ Personal data will be processed in a manner that ensures appropriate security of the personal data, including protection against unauthorised or unlawful processing and against accidental loss, destruction or damage, using appropriate technical or organisational measures. We would like to continue to correspond with you by email and text. If you wish to continue, you need take no further action. Otherwise simply forward the email, letter or text message and confirm if you no longer wish to receive correspondence via email or SMS. Stingray Environmental Engineering Ltd. Registered Office: 2 Forgehill Close, Stamullen, Co. Meath, K32 VK76, Registered in Ireland. Company Reg. No.639965, A private company limited by shares having a share capital. Directors: Waldemar Debowski This report is confidential and may be privileged. It may be read, copied and used only by the intended recipient. If you have received it in error, please contact Waldemar Debowski by return e-mail or by telephoning either of the above numbers. RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/ENGINEERING REPORT STINGRAY ENVIRONMENTAL ENGINEERING LTD. 3 Introduction 1. Wastewater Loading Rates………………………………………………………………………………………………………………………………..4 2. Effluent charactersitics………………………………………………………………………………………………………………………………………5 3. Location of WWTS……………………………………………………………………………………………………………………………………………..6 4. Proposed Wastewater Treatment system………………………………………………………………………………………………………….6 5. Summary………………………………………………………………………………………………………………………………………………………….18 RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/ENGINEERING REPORT STINGRAY ENVIRONMENTAL ENGINEERING LTD. 4 Introduction Stingray Environmental Engineering Ltd. were requested by Mr. Gordon Mitchell at Mitchell Environmental, acting on behalf John Treacy of the Treacy’s Hotel to prepare the site-specific design and engineering report to detail: Modification to exiting 200PE Wastewater Treatment System for an existing hotel/restaurant at Lossets, Carrickmacross, Co. Monaghan, A81CY23. Figure 1. Treacy’s Hotel Site location Existing hotel will accommodate approximately 220 occupants, 70 bar drinkers and 200 function room guests at the busiest time. Estimated occupancy of 220 occupants, 25 staff and 70 bar drinkers, 200 function room guests per day has been used for design basis. The objectives of this report are to study the proposed water and wastewater load and to design the suitable and fit for purpose on-site foul treatment system. Proposed system to be compliant with the best available engineering practice and statutory requirements. It is understood that the treatment and disposal of wastewater from the development must comply with EPA 1993 Wastewater Manual, Treatment Systems for Small Communities, Business, Leisure Centres and Hotels or alternatively BW COP: 1/05. Considering the existing heritage nature of the development the best engineering practice and the other available European and World standards shall not be disregarded. 1. Wastewater loading rates In order to correctly evaluate design of the wastewater treatment system for proposed development, all details relating to the hydraulic, BOD and ammonia loadings were obtained from O’Leary Sludds agent/architect. (Appendix A. Loading Form). The details contained in Table 1. outline the maximum daily wastewater characteristics. It is assumed that waste disposal units, garbage grinders, food macerators are not in use. It is assumed that all grease traps will be designed/installed adequately to cover the current usage. RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/ENGINEERING REPORT STINGRAY ENVIRONMENTAL ENGINEERING LTD. 5 Raw Wastewater Daily Loadings Figure 2. Table 1. Wastewater loading rates-existing and proposed development; theoretical calculations based on the estimated peak time usage 2. Effluent characteristics RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/ENGINEERING REPORT STINGRAY ENVIRONMENTAL ENGINEERING LTD. 6 Proposed development it is subjected to discharge license application, however taking into consideration commercial nature of this development further consultation with local authority should be sought. Emission limits based on the EPA criteria, with proposed effluent discharge to ground waters are outlined in Table 2. Parameter Max limit Units Comments Hydraulic discharge/daily 43.5 m3/day Discharge License required ; proposed system designed to cater for max load Hydraulic discharge/hourly 2.5 m3/hr Discharge License required ; proposed system designed to cater for max load Temperature 25 deg C Subject to discharge license requirements pH 6-9 pH units EPA 2009 COP proposed system designed to cater for BOD 20 mg/l EPA 2009 COP proposed system designed to cater for Total Ammonia (N) 20 mg/l EPA 2009 COP proposed system designed to cater for TSS 30 mg/l EPA 2009 COP proposed system designed to cater for Orto Phosphate (P) 5 mg/l Subject to discharge license if required COD 125 mg/l Subject to discharge license if required Nitrates 10 mg/l Subject to discharge license if required Detergents 10 mg/l Subject to discharge license if required FOG 10 mg/l Subject to discharge license if required Figure 3 Table 2. Effluent emission limits 3. Location of wastewater treatment system The location and configuration of the wastewater treatment and disposal system does depend on the site topography, the presence or otherwise of underground services, planning conditions, and on or other factors, whether existing, planned, or anticipated. It is also important that the siting of the wastewater treatment and disposal system is based on careful consideration of the social, environmental and engineering constraints specific to the site and the development. Features Wastewater Treatment System Any Existing Development 50 m Site Boundary 3 m Roads 4 m Trees 3m Slope break /cuts 4m Lake or Foreshore 50m Open Drain 10m Watercourse Stream 10m Strom Water Soakaways 5m Figure 4.Table 3. Separation distance wastewater treatment system The separation distances contained in Table 5. are provided as a guide. Separation distances should be such that any excavation work required for the wastewater treatment and disposal system does not undermine RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/ENGINEERING REPORT STINGRAY ENVIRONMENTAL ENGINEERING LTD. 7 adjacent features, such as buildings, roads, or walls. In such instances, the separation distance should be adjusted accordingly, but it should be at least 50% greater than the depth of the excavation. 4. Proposed wastewater treatment system 4.1 Proposed System Based on the information contained in Sections 1 & 2, it is recommended that a precast concrete BAF wastewater treatment system with a minimum capacity of 155m3 (including freeboard capacity) is installed to treat the volumes of wastewater proposed. System design is based on the recommendation of technical guidance document EPA 1993 Wastewater Manual, Treatment Systems for Small Communities, Business, Leisure Centres and Hotels in conjunction with BW COP: 1/05 for ammonia calculations. Proposed system will be installed as an addition to the existing 200PE wwts. The system proposed by Stingray Environmental uses Biological Aerated Filtration (BAF) technology for a maximum 290PE hydraulic, 275 BOD and 339 equivalent Ammonia loads. An optional chemical dosing system can be incorporated to reduce phosphorus levels if required. The treatment system is installed underground and therefore any noise or odour nuisance are reduced once the system is well vented and maintained. The system works on the principle of a Submerged Fixed-Film Reactor. This process utilizes a biological mass, which is physically attached to a support medium (e.g. plastic), to which oxygen is supplied. The proposed wastewater treatment system design: Treatment Process Volume [m3] Number of compartments Number of tanks Existing tank Primary 15 1 1 Existing tank Buffer 15 Free Board 6 BAF Reactor 88 3 3 Clarifier 23 1 1 Effluent Discharge Lift station 8.5 1 1 Figure 5. Table 4. WWTS Design RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/ENGINEERING REPORT STINGRAY ENVIRONMENTAL ENGINEERING LTD. 8 Figure 6. WWTS Design calculations RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/ENGINEERING REPORT STINGRAY ENVIRONMENTAL ENGINEERING LTD. 9 4.2 Proposed WWTS ayout Figure 7. WWTS Design Layout and Details RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/ENGINEERING REPORT STINGRAY ENVIRONMENTAL ENGINEERING LTD. 10 4.3 Process Description 4.3.1 Primary Settlement tank/Buffer storage This part of treatment process is used to remove sludge by gravity settlement and to separate floating matters like grease and oils also provide initial digestion under anaerobic O 2 0ppm conditions. Existing holding tank has been utilised for this purpose. Estimated volume of primary storage section 36m3. The large part of the existing storage tank (approx. 30m3 volume measured below the inlet) will create buffer zone. 4.3.2 De-Nitrification chamber This part of the treatment in conjunction with nitrification stage form part of nitrogen and ammonia removal process. The anoxic conditions O2 0-2ppm present in this stage of the process encourage biological communities to form and convert nitrite to dinitrogen under specific conditions. Recirculated mixed liquor is being return to this process and mixed with return activated sludge and pumped raw influent. 4.3.3 Buffer/Balance chamber The wastewater is released to the balance chambers equipped with balancing vortex type submersible pump. The combined buffer volume of approx. 15m3 (part of existing holding tank/ anoxic chamber/ balancing chamber) withholds the maximum estimated waste flow (43.5m3) for minimum period of 8hrs when being gradually discharge on 24/7 basis to next stage of the treatment process -Biological Aeration treatment 4.3.4 Secondary Treatment This part of treatment process is designed to substantially degrade the biological content of the sewage which are derived from human waste, food waste, soaps and detergent. Proposed wwts treat the settled sewage liquor using aerobic fixed film biological processes. The light supporting media are placed randomly into the reactor tanks above the bottom of the tank. The media provides a large surface area, on which the fixed aerated biomass will grow. The filter bed is fully submerged and settled wastewater flows acros s and downward through the filter. Air pump and submerged aerators inject compressed air through a fine bubble diffuser generating aerobic condition with O2 level >2ppm. Highly nitrified suspended liquor then flows by gravity into secondary settlement tank, with some of the mixed liquor suspended solids MLSS being returned to anoxic zone. 4.3.5 Secondary Settlement / Clarifier The treated liquid does settle in the clarifier chamber where any remaining solid particles are collected as sludge in a sump and returned to the primary sedimentation in form of return or waste activated sludge RAS or WAS for further re-treatment or removal. 4.3.6 Effluent Lift Station Clarified Effluent enter this part of the treatment by gravity and is being discharge d further to polishing filter or surface waters via pumps or gravity. In-line suspended solids mesh filter can be introduced at this stage to polish the effluent prior ground/surface water discharge thus extend lifespan of percolation and polishing filter s ystems. 4.3.7 Phosphorus Dosing Unit Optional chemical dosing for phosphorus is available for incorporation into the system without any further tanks. The system will be programmed to specifically suit the calculated loads. RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/ENGINEERING REPORT STINGRAY ENVIRONMENTAL ENGINEERING LTD. 11 Residual Phosphorus P is removed using coagulant (i.e. Ferric Sulphate Aluminum Chloride) pumped into stage prior to final clarification. 4.3.8 Carbon Dosing for Unbalanced Sewage Optional Carbon dosing unit is included for carbon deficiency in the incoming sewage. Unbalanced conditions are often found in sewage for smaller plants. 4.3.9 Oils, Fats and Grease separator Grease removal device is desirable at source, prior to discharge to the collection network. The oils, fats and greases are not easily biodegradable they can cause many problems in the collection network. NS 13 Grease trap will be proposed as an upgrade to the existing unit. 4.3.10 Screening and Grit Removal system Optional grit removal and screening device is desirable at source at development of this nature. The non- biodegradable materials i.e. wipes, rugs, plastic foils, packaging can cause mechanical equipment failures 4.4 General Information The number of factors should be taken into consideration when choosing the on-site wastewater treatment system, with the main objects as follows: • Compliance with national and international standards • Supervision during construction, installation and commissioning • Supervision during construction of effluent disposal system • Frequency and access for servicing • Maintenance and operating procedures requirements • Life span of the entire system • Correct operating procedures • Sludge storage, desludging frequency and access for desludging • Plant alarm features and fail-safe measures • Capital, operation and maintenance cost • System performance • Power requirements • Access arrangements for installation • Package WWS should be used only in accordance with the design parameters. To ensure correct operation of the system it is important to comply with the manufacturer’s instructions and guidance. 4.4.1 Surface water Package wastewater treatment systems are not designed to accept surface water run -off from either the development or its surroundings. Surface water should be disposed of to a purpose -built surface water disposal / reuse rainwater harvesting RWHS system. 4.4.2 Maintenance & Servicing RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/ENGINEERING REPORT STINGRAY ENVIRONMENTAL ENGINEERING LTD. 12 Package system supplier shall to maintain the system for the first 24 months following installation and commissioning, and thereafter should be able to provide the Client with an Annual Service Agreement to service and inspect the system at least 6 times per annum. 4.4.3 Installation supervision It should be responsibility of the Project Supervisor (i.e. Engineer, Architect or other competent person) to ensure that the on-site wastewater treatment system is located and installed in accordance with planning conditions and EPA 2009 CoP requirements. 4.4.4 Polishing Filter Polishing filter design by the others. Please refer to Stingray Env Eng Site characterization Report and Recommendation 4.4.5 Control kiosks Suitable GRP, Steel or Precast control with vandal proof and unauthorized access protection kiosk should be erected on site. 4.4.6 Control Panel Suitable 3 phase control panel incorporated with plant layout and specification should be supplied to site 4.4.7 Monitoring and Alarms Package wastewater treatment system should incorporate alarm system, which operate as the warning device. An alarm panel (audio / visual/ GSM /both) should be installed in a prominent location within the proposed development. On remote sites, or where required, an automatic dial out alarm system can be provided. The proposed wastewater treatment system includes a plant alarm system, which allows for monitoring of certain conditions within the treatment system. The proposed wastewater treatment system is serviced by three alarms, which operate as warning devices. An alarm panel (audio / visual) is supplied and should be installed in a prominent location within the proposed development. The alarm panel is fitted with three indicator lights, an audio alarm and a mute switch. The alarm will sound, and individual warning lights will light up under the following circumstances: • The high-water level alarm is activated if the water level within the treatment system rises above the normal operational level for any reason; • The Equipment TRIP alarm is activated in the event of any malfunction of the mechanical and electrical system; • The POWER alarm is activated if the circuit breaker on the power supply trips for any reason. 4.7.8 Cables Dedicated steel wire armored electrical SWA type cables should be used for electrical connection between the control panel and localized isolators. 4.7.9 Connection to power supply All ESB connection to be made by suitably qualified and RECI certified contractor 4.7.10 External Lighting External lighting is optional mainly for areas where service will be expected after dusk and/or in un-lilted locations. RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/ENGINEERING REPORT STINGRAY ENVIRONMENTAL ENGINEERING LTD. 13 4.7.11 Mechanical • Pumps • Aerators • Diffusers • Media • Lifting Equipment • Mechanical Filtration • Odour Control • Access covers Refer to attached drawing for equipment specification 4.7.12 Piping • UPVC • PVC • HDPE • Stainless • Ductile • Galvanized Refer to attached drawing for piping specification 4.7.13 Sampling Equipment • Automatic Sampler • 24 composite Sampler c/w fridge unit and revolving drums Optional additional sampling equipment can be selected and provided 4.7.14 Instrumentation • Flow Meter • pH Meter Optional additional metering equipment can be selected and provided 4.7.15 Dosing systems • Chemical • Biological Optional additional dosing equipment can be selected and provided 4.7.16 Civil works Civil work package will be outsourced to suitable qualified contractor (Mitchell Environmental Ltd.) and should include as a minimum but not be exclusive to: • Excavations • Roads and Hard standings • Comply with site H&S RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/ENGINEERING REPORT STINGRAY ENVIRONMENTAL ENGINEERING LTD. 14 • Well-being facilities • Emergency aids • Fencing & protection • Stockpiling and removal • Aggregates supply, delivery, offloading • Concrete works • Water control • Lifting • Access • Machinery • Backfilling and landscaping • Investigation of Existing Utilities • Health and Safety • Signage • Equipment • Potable water 4.7.17 Testing & Commissioning Proposed plant will come with test and commissioning package and full certification at the completion of works. 4.7.18 Handover and Training Handover documentation in PDF and hard copies will be provided at the completion for the installation and commissioning works 4.7.18 Certification Equipment certification and overall completion certification will be provided 4.7.18 Warranties The wastewater treatment system should come with a minimum 24 months manufacturer’s guarantee starting from the installation date. In case of defective system installed, supplier should repair or replace, free of charge, any part of the system affecting operation and performance of the unit installed. This guarantee should be given on the basis that the system is installed and operated in accordance with the manufacturer’s instructions. RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/ENGINEERING REPORT STINGRAY ENVIRONMENTAL ENGINEERING LTD. 15 4.5 Operational expenditure OPEX 4.5.1 Electricity Cost The following is an estimate of the associated electricity costs. Drives: size (kW) Run hours (h/d) kwh/d Balance Pump 1.0 10 10 Submerged aerators 6.0 24 144 Air Blowers 2.0 24 48 Ras Pump 1.5 2 3 MLSS Pump 1.5 2 3 Effluent Pump 0.5 2 2 Electrical Panel 0.2 24 4.8 Total run hours (kwhr/d) Figure 8. Estimated electricity cost 4.5.2 Maintenance Cost The standard supply shall include for min of 2 year of mechanical and electrical equipment warranty and 6 number of service call-out visits. The estimated future annual maintenance requirement is approximately 6 visits per year. TSL cost per visit is € + vat (plus expenses incurred). 4.5.3 Operations Cost The plant operations requirement (alarm monitoring, visual inspection) is approximately 0.5 hour per week for trained caretaker personnel. Average Labour cost Caretaker € Figure 9. Estimated operation and maintenance cost 4.5.4 Spares and Consumables Spares kits will be required for the main mechanical components – i.e. pumps and blowers. The cost for a spares kit for pump life for 5 to 7 years is: ca. € for pumps. The air blower and aerators spare kit is ca. € Spares for the first 5 years running of plant are approximately € 4.5.5 Contingency & Insurance All insurances PI, PL, EL are included in compliance with specification. 4.5.6 Sampling and Reports It is recommended that wwts effluent and influent will be tested at least six times a year unless otherwise specified by governing authority. Details cost breakdown will be available upon request. 4.5.7 Reference Plants Full list and visual inspection available upon request. Please contact Stingray Environmental Engineering Limited for more details. RECEIVED: 16/06/2026 2020/TH/CARRICKMACROSS/ENGINEERING REPORT STINGRAY ENVIRONMENTAL ENGINEERING LTD. 16 7.0 Summary • The fixed film BAF 155m3 package wastewater treatment system, compliant with national standards should be installed at proposed development. Important Note This report is only valid in conjunction with loading details provided by O’Leary Sludds . The author cannot be responsible for any changes that could occur as result of re-design, construction, remediation, adjustment works completed afterwards. Additional ground investigation works and application for discharge licence to waters may still be needed if further required by local authorities or any other governing bodies. Signed: Waldemar Debowski Date: 22nd April 2020 Qualifications: B.Eng. P.Grad.Dips. FETAC Cert MIEI MIAH RECEIVED: 16/06/2026 CLIENT:JOHN TREACYTREACYS HOTELSCALE:1:500 @ A1DATE:MARCH 2020DRAWING NUMBER: 410-C01PROJECT:ALTERATIONS TO TREACYSHOTEL CARRICKMACROSS,CO. MONAGHANDRAWING TITLE:PROPOSED SITELAYOUT PLANDRAWN BY: WALDEMAR DEBOWSKIREVISION: ESTINGRAYENVIRONMENTALENGINEERING LTD.2 Forgehill CloseStamullenCo. Meath, K32VK76Tel: 01 694 91 74Mobile: 085 721 55 90info@stingrayenvironmental.ieREV.DATEDESCRIPTIONDRAWING STATUS: DRAFTA07/03/2020GENERAL REVISIONB01/04/2020GENERAL REVISIONC20/04/2020GENERAL REVISIOND21/04/2020GENERAL REVISIONE22/04/2020GENERAL REVISIONRECEIVED: 16/06/2026 LAYOUT PLANPROCESS FLOW DIAGRAMCLIENT:JOHN TREACYTREACYS HOTELSCALE:NTS @ A3DATE:MARCH 2020DRAWING NUMBER: 410-C02PROJECT:ALTERATIONS TO TREACYSHOTEL CARRICKMACROSS,CO. MONAGHANDRAWING TITLE:STAGE 2 WWTS UPGRADEDETIALSDRAWN BY: WALDEMAR DEBOWSKIREVISION: DSTINGRAYENVIRONMENTALENGINEERING LTD.2 Forgehill CloseStamullenCo. Meath, K32VK76Tel: 01 694 91 74Mobile: 085 721 55 90info@stingrayenvironmental.ieREV.DATEDESCRIPTIONDRAWING STATUS: DRAFTA19/03/2020GENERAL REVISIONB20/04/2020GENERAL REVISIONC21/04/2020GENERAL REVISIOND22/04/2020GENERAL REVISIONRECEIVED: 16/06/2026 LAYOUT PLANTYPICAL SECTIONCLIENT:JOHN TREACYTREACYS HOTELSCALE:NTS @ A3DATE:MARCH 2020DRAWING NUMBER: 410-C03PROJECT:ALTERATIONS TO TREACYSHOTEL CARRICKMACROSS,CO. MONAGHANDRAWING TITLE:STRATIFIED SANDPOLISHING FILTER 4THSTAGE FILTRATION DETAILSDRAWN BY: WALDEMAR DEBOWSKIREVISION: BSTINGRAYENVIRONMENTALENGINEERING LTD.2 Forgehill CloseStamullenCo. Meath, K32VK76Tel: 01 694 91 74Mobile: 085 721 55 90info@stingrayenvironmental.ieREV.DATEDESCRIPTIONDRAWING STATUS: DRAFTA20/04/2020GENERAL REVISIONB23/04/2020GENERAL REVISIONRECEIVED: 16/06/2026 Treacys Hotel Hotel 0.286 ltrs/day 2 ltrs/week ltr/day 43500 ltrs/day ltr/hr 16500 g/day 2715 g/day min/hr hr/day day/week Max. influent concentration as per EPA waste water treatment manuals 531 925 1748 6-9 100 30 1).Design criteria adopted from EPA waste water manual for primary,secondary,tertiary treatment Flow ltrs/d BOD g/day NH4N*g/day Hotels 0 0 0 39600 13200 1760 900 450 75 300 150 30 Restaurant full meals 0 0 0 2000 2000 500 0 0 0 700 700 350 Total 43500 16500 2715 PE 290 275 339 Bar drinkers 70 Pubs and Clubs Resident staff 0 200 luxury catering function rooms part time staff 220 15 10 10 Guests 3&4star Guest residents/laundry full time staff 20 Wastewater Characterisation Form 20-500PE (Population Equivalent) Site Details: Type of activity: Emission Details : Normal/day Max.rate/hour 43500 2417 Maximum/day estimated volume to be emitted Average period during which emissions are made , including daily or seasonal variations Oil Fats Greases Ammonia as N COD pH 15 18 7 Parameter [mg/l] Wastewater characteristics Prior to treatment After tertiary treatment SS BOD5 30 20 Quantity of disinfection chemicals used: Comments: Reccomended Wastewater Loading Rates From Commercial Premises Source Situation Population 3).*Design criteria adopted from British Water CoP 2).Design criteria adopted from EPA waste water manual for small communities, business, leisure centres and hotels 100 6 to 9 BOD Max/day NO3 Max/day After secondary treatment RECEIVED: 16/06/2026